Commit 45882145 authored by Paul Mundt's avatar Paul Mundt Committed by Paul Mundt

sh: First step at generic timeofday support.

At the moment we wrap GENERIC_TIME around our existing timer API.
As boards start providing their own clocksources, they're able to
select GENERIC_TIME accordingly and optimize out most of the timer
API.

Once the current timers have been reworked as proper clocksource
drivers, the rest of the place holders for the timer API can go
away and we can flip on GENERIC_TIME unconditionally.
Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent 49f19ce4
...@@ -45,6 +45,9 @@ config GENERIC_CALIBRATE_DELAY ...@@ -45,6 +45,9 @@ config GENERIC_CALIBRATE_DELAY
config GENERIC_IOMAP config GENERIC_IOMAP
bool bool
config GENERIC_TIME
def_bool n
config ARCH_MAY_HAVE_PC_FDC config ARCH_MAY_HAVE_PC_FDC
bool bool
...@@ -357,6 +360,7 @@ config CPU_HAS_SR_RB ...@@ -357,6 +360,7 @@ config CPU_HAS_SR_RB
endmenu endmenu
menu "Timer support" menu "Timer support"
depends on !GENERIC_TIME
config SH_TMU config SH_TMU
bool "TMU timer support" bool "TMU timer support"
......
...@@ -47,6 +47,7 @@ unsigned long long __attribute__ ((weak)) sched_clock(void) ...@@ -47,6 +47,7 @@ unsigned long long __attribute__ ((weak)) sched_clock(void)
return (unsigned long long)jiffies * (1000000000 / HZ); return (unsigned long long)jiffies * (1000000000 / HZ);
} }
#ifndef CONFIG_GENERIC_TIME
void do_gettimeofday(struct timeval *tv) void do_gettimeofday(struct timeval *tv)
{ {
unsigned long seq; unsigned long seq;
...@@ -99,6 +100,7 @@ int do_settimeofday(struct timespec *tv) ...@@ -99,6 +100,7 @@ int do_settimeofday(struct timespec *tv)
return 0; return 0;
} }
EXPORT_SYMBOL(do_settimeofday); EXPORT_SYMBOL(do_settimeofday);
#endif /* !CONFIG_GENERIC_TIME */
/* last time the RTC clock got updated */ /* last time the RTC clock got updated */
static long last_rtc_update; static long last_rtc_update;
......
...@@ -8,7 +8,9 @@ struct sys_timer_ops { ...@@ -8,7 +8,9 @@ struct sys_timer_ops {
int (*init)(void); int (*init)(void);
int (*start)(void); int (*start)(void);
int (*stop)(void); int (*stop)(void);
#ifndef CONFIG_GENERIC_TIME
unsigned long (*get_offset)(void); unsigned long (*get_offset)(void);
#endif
unsigned long (*get_frequency)(void); unsigned long (*get_frequency)(void);
}; };
...@@ -24,10 +26,12 @@ struct sys_timer { ...@@ -24,10 +26,12 @@ struct sys_timer {
extern struct sys_timer tmu_timer; extern struct sys_timer tmu_timer;
extern struct sys_timer *sys_timer; extern struct sys_timer *sys_timer;
#ifndef CONFIG_GENERIC_TIME
static inline unsigned long get_timer_offset(void) static inline unsigned long get_timer_offset(void)
{ {
return sys_timer->ops->get_offset(); return sys_timer->ops->get_offset();
} }
#endif
static inline unsigned long get_timer_frequency(void) static inline unsigned long get_timer_frequency(void)
{ {
......
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